US3387349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential feed roll crimper and method
Assignee: Joseph Bancroft and Sons Co
•
Filing: 1965-04-08
•
Granted: 1968-06-11
•
Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Alexander L Trifunovic
- 👤 Steve E Zeis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:41
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2669001A
Cited
US2917779A
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US2975474A
Cited
US3217376A
Cited
US3253314A
Cited
US3271836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |