US2981712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions
Assignee: EIDP Inc
•
Filing: 1957-07-01
•
Granted: 1961-04-25
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Harper Lee Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7614; C08G18/7621; C08G18/08; C08G18/089; C08G18/10; C08G18/16; C08G18/18; C08G18/1816; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/423; C08G18/4233; C08G18/4236; C08G18/4238; C08G18/4244; C08G18/4247; C08G18/425; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/664; C08G18/6644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2620349A
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US2692874A
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US2692873A
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DE929507C
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US2855421A
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US2836575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |