US3538967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sawing apparatus
Assignee: Unifrax I LLC
•
Filing: 1968-05-28
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Granted: 1970-11-10
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Expires: 1988-05-28
Abstract
No abstract record available.
Inventors
- 👤 James L Hensley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:53
CPC Classifications
B; B27; B27F; B27F5/00; B27F5/02; B27F5/12; B23; B23D; B23D59/00; B23D59/001; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49799; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/7697
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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |