Patent US3769206A successfully refreshed from Google Patents.
Patent US2874150A successfully refreshed from Google Patents.
US2874150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy compounds
Assignee: PPG Industries Inc
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Filing: 1956-11-20
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Granted: 1959-02-17
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Expires: 1976-11-20
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 John J Jaruzelski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:06
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AN EXPOXIDE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
AN EXPOXIDE OF THE FORMULA:
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |