Patent US3753773A successfully refreshed from Google Patents.
US3753773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of poly-para-heterocyclic-xylene polymer
Assignee: Boeing North American Inc
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Filing: 1972-04-26
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Granted: 1973-08-21
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Expires: 1992-04-26
Abstract
Abstract A deposition process and product obtaining a coating on an object of a poly-para-heterocyclic-xylylene polymer wherein a dimer is vaporized in a front portion of the chamber obtaining diradicals of para-xylylene, and deposited on a surface of the object in a third portion of the chamber thereby obtaining a coating of the poly-para-heterocyclic-xylylene polymer on the surface of the object.
Inventors
- 👤 S Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:48
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; C; C23; C23C; C23C14/00; C23C14/06; C23C14/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
15 words
The invention as stated in claim 1, wherein: the polymeric coating is a homo-poly-para-heterocyclic-xylylene compound.
Claim 2
Dependent Claim
15 words
The invention as stated in claim 1, wherein: the polymeric coating is a linear-homo-poly-para-heterocyclic-xylylene compound.
Claim 3
Dependent Claim
31 words
The invention as stated in claim 1, wherein: the polymeric coating is selected from the group consisting of at least one single ring system and at least one fused ring system.
Claim 4
Dependent Claim
32 words
The invention as set forth in claim 2, wherein: the polymeric coating is selected from the group consisting of at least one single ring system and at least one fused ring system.
Claim 5
Dependent Claim
32 words
The invention as set forth in claim 3, wherein: the polymeric coating is selected from the group consisting of at least one single ring system and at least one fused ring system.
Claim 6
Dependent Claim
33 words
The invention as stated in claim 1, wherein: the polymer coating has a ring system with nitrogen atoms at the 1 and 2 positions of its ring thereby resulting in a pyridazine compound.
Claim 7
Dependent Claim
33 words
The invention as stated in claim 1, wherein: the polymer coating has a ring system with nitrogen atoms at the 1 and 3 positions of its ring thereby resulting in a pyrionidine compound.
Claim 8
Dependent Claim
33 words
The invention as stated in claim 1, wherein: the polymer coating has a ring system with nitrogen atoms at the 1 and 4 positions of its ring thereby resulting in a pyrazine compound.
References Cited (Backward Citations)
US3086946A
Cited
US3166521A
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US3246627A
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US3318728A
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US3379803A
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US3453275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |