US3145782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary percussion hand drill
Assignee: Individual
•
Filing: 1962-08-03
•
Granted: 1964-08-25
•
Expires: 1982-08-03
Abstract
No abstract record available.
Inventors
- 👤 Bruin Hugo J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:34
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/10; B25D11/102; B25D11/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A DRILLING ASSEMBLY, A HOUSING, A POWER SOURCE IN THE HOUSING A SHAFT ROTATABLY MOUNTED IN THE HOUSING AND CONNECTED AT ONE END TO THE POWER SOURCE, A CHUCK FOR RELEASABLY RECEIVING A DRILL BIT CONNECTED TO THE OTHER END OF THE SHAFT, SAID SHAFT CONSTRUCTED SO SAID ONE END AND OTHER END ROTATE AT THE SAME SPEED, MEANS FOR
Claim 2
Dependent Claim
61 words
IN A DRILLING ASSEMBLY, A HOUSING, A POWER SOURCE IN THE HOUSING A SHAFT ROTATABLY MOUNTED IN THE HOUSING AND CONNECTED AT ONE END TO THE POWER SOURCE, A CHUCK FOR RELEASABLY RECEIVING A DRILL BIT CONNECTED TO THE OTHER END OF THE SHAFT, SAID SHAFT CONSTRUCTED SO SAID ONE END AND OTHER END ROTATE AT THE SAME SPEED, MEANS FOR
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |