US3457796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool
Assignee: Porter Cable Corp
•
Filing: 1966-06-23
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Granted: 1969-07-29
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Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Hugh K Leach
- 👤 Robert W Taylor
- 👤 Terry L De Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
B; B23; B23D; B23D51/00; B23D51/16; B23D51/161; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D49/165; B23D59/00; B23D59/001; B23D59/002; B23Q; B23Q17/00; B23Q17/24; B23Q17/2404; B25; B25F; B25F5/00; B25F5/02; B25F5/021; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18256
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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |