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US2237338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rivet
Assignee: GIENN L MARTIN Co
•
Filing: 1939-02-20
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Granted: 1941-04-08
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Expires: 1959-02-20
Abstract
No abstract record available.
Inventors
- 👤 Hubert S Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915
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) | 1944-04-07 | 1944-10-07 | 1945-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-07 | 1948-10-07 | 1949-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-07 | 1952-10-07 | 1953-04-08 | $7700.00 | Window Closed / Lapsed |