US3587391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work support mechanism
Assignee: Individual
•
Filing: 1969-09-25
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Granted: 1971-06-28
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Expires: 1989-09-25
Abstract
Abstract A WORK SUPPORT MECHANISM FOR USE WITH A SHAPING MACHINE INCLUDING A PLURALITY OF HOLD DOWN ASSEMBLIES AND ROLLERS FOR SUPPORTING A WORK PIECE IN THE IMMEDIATE VICINITY OF A MACHINING OPERATION.
Inventors
- 👤 Robert D Pitts
- 👤 Lewis L Mcallister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:25
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/40; B23Q3/00; B23Q3/002; B23Q3/02; B23Q3/06; B23Q3/069; B23Q3/16; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T409/00; Y10T409/30; Y10T409/309576
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |