Patent US3940972A successfully refreshed from Google Patents.
Patent US3520748A successfully refreshed from Google Patents.
US3520748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and arrangements for transversely cutting travelling webs of paper or foil or films of plastics and other flexible materials
Assignee: Individual
•
Filing: 1966-10-05
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Granted: 1970-07-14
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Paul Charles Riegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:35
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/20; B26D1/205; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1805; B65H19/181; B65H19/20
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) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |