Patent US2869374A successfully refreshed from Google Patents.
US2869374A
Expired / Lapsed
US
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Mechanical hammer
Assignee: Individual
•
Filing: 1956-03-05
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Granted: 1959-01-20
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Morris Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:12
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/10; B25D11/102; B25D11/104; B25D17/00; B25D17/26; Y; Y10; Y10S; Y10S173/00; Y10S173/03; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US846967A
Cited
US1273873A
Cited
DE551139C
Cited
US2009580A
Cited
US2401794A
Cited
US2630723A
Cited
US2780106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |