US2688445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counting and recording mechanisms
Assignee: DANIEL N COPP
•
Filing: 1950-05-25
•
Granted: 1954-09-07
•
Expires: 1970-05-25
Abstract
No abstract record available.
Inventors
- 👤 James F Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:38
CPC Classifications
G; G06; G06M; G06M3/00; G06M3/06; G06M3/062; G06M3/065
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |