US3580799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated products
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1969-11-26
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Granted: 1971-05-25
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Expires: 1989-11-26
Abstract
Abstract EPOXY RESIN ADHESIVES WITH IMPROVED ADHESIVE PROPERTIES, E.G., HIGHER SHEAR STRENGTH UNDER CONDITIONS OF SHORTER CURE TIME AND/OR LOWER CURE TEMPERATURE, ARE FORMED FROM MIXTURES OF EPOXY RESINS AND AZIRIDINYL COMPOUNDS CONTAINING CATALYTIC AMOUNTS OF COMPOUNDS THAT HAVE BOTH >NH AND -SO-OH OR -SO3-H GROUPS, E.G., SULFAMIC ACID OR FORMAMIDINE SULFINIC ACID.
Inventors
- 👤 Heinz Uelzmann
- 👤 David C Hidinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:10
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/506; C08G59/5066; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |