US3536943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically powered hand tool
Assignee: Porter Cable Corp
•
Filing: 1969-10-31
•
Granted: 1970-10-27
•
Expires: 1989-10-31
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Bowen
- 👤 Jerry W Sellers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:32
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/145; B; B25; B25F; B25F5/00; B25F5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2809311A
Cited
US2965774A
Cited
US2959696A
Cited
US3241397A
Cited
US3121813A
Cited
US3413498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |