US2698602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency operating mechanism
Assignee: Individual
•
Filing: 1949-04-23
•
Granted: 1955-01-04
•
Expires: 1969-04-23
Abstract
No abstract record available.
Inventors
- 👤 Charles A Olcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:28
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2503956A
Cited
US1213457A
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US1370924A
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US2105059A
Cited
US2090373A
Cited
US2348460A
Cited
US2352140A
Cited
US2352334A
Cited
US2402885A
Cited
US2452599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |