US2647502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
braun
Assignee: —
•
Filing: —
•
Granted: 1953-08-04
•
Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2376732A
Cited
US2420925A
Cited
US2452698A
Cited
US2460046A
Cited
US2075330A
Cited
US2193533A
Cited
US2317625A
Cited
US2269930A
Cited
US2313258A
Cited
US2362879A
Cited
US2421800A
Cited
US2430692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |