US2656672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interval timer
Assignee: Individual
•
Filing: 1947-12-17
•
Granted: 1953-10-27
•
Expires: 1967-12-17
Abstract
No abstract record available.
Inventors
- 👤 John J Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:28
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/02; G04F3/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784031A
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US1226810A
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US1919255A
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US2193972A
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US2274685A
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US2282209A
Cited
US2367016A
Cited
US2431849A
Cited
US2462839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |