US3766299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of polyalkylene imine and epoxy halo ethylenic substituted difunctional compounds
Assignee: C & D ACQUISITION CORP A CORP OF DE
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Filing: 1971-09-30
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Granted: 1973-10-16
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Expires: 1991-09-30
Abstract
Abstract A COMPOSITION OF MATTER IS PROVIDED SUITABLE FOR APPLYING A TRANSPARENT NON-FOGGING COATING TO A NORMALLY FOGGING TRANSPARENT OR REFLECTING SUBSTRATE. THE COMPOSITION TYPICALLY COMPRISES A HIGHLY CROSS-LINKED ALKYLENE IMINE POLYMER REACTION PRODUCT OF THE POLYALKYLENE IMINE WITH A EPOXY SUBSTITUTED CARBOXYLIC ESTER AND EPIHALOHYDRIN.
Inventors
- 👤 R Dornte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/054; C09; C09K; C09K3/00; C09K3/18; C08J2479/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |