Patent US2634012A successfully refreshed from Google Patents.
US2634012A
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Assignee: Copeman Laboratories Co
•
Filing: 1946-04-25
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Granted: 1953-04-07
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Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Lloyd G Copeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:12
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/10; B65D41/14; B65D53/00; B65D53/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T428/00; Y10T428/21; Y10T428/215
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |