US2454989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary tool handle
Assignee: Individual
•
Filing: 1946-07-22
•
Granted: 1948-11-30
•
Expires: 1966-07-22
Abstract
No abstract record available.
Inventors
- 👤 Carl H Carlson
- 👤 Ressell William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:40
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/04; Y; Y10; Y10T; Y10T403/00; Y10T403/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |