US2639632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forging machine
Assignee: FREDERICK F CRILEY
•
Filing: 1948-04-19
•
Granted: 1953-05-26
•
Expires: 1968-04-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Criley
- 👤 Henry P Boggis
- 👤 Criley Wilma Suits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:08
CPC Classifications
B; B21; B21J; B21J9/00; B21J9/02; B21J9/06; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T29/5121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1766484A
Cited
US1914514A
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US1875586A
Cited
US2042375A
Cited
US2094850A
Cited
US2114420A
Cited
US2132853A
Cited
US2376654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |