US3522748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for slitting plastic film and the like
Assignee: Individual
•
Filing: 1967-09-27
•
Granted: 1970-08-04
•
Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Charles Treffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/16; B26D1/00; B26D1/01; B26D1/02; B26D1/03; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16016; Y10T82/16426; Y10T82/16967; Y10T82/26; Y10T82/266; Y10T82/268
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) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |