US2520286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twine cutting machine
Assignee: DRYDEN PAPER CO Ltd
•
Filing: 1948-03-05
•
Granted: 1950-08-29
•
Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Pietsch Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:46
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/06; B26D7/0683; B65; B65H; B65H51/00; B65H51/18; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/463; Y10T83/4632; Y10T83/727; Y10T83/739; Y10T83/869; Y10T83/8789; Y10T83/8796; Y10T83/929; Y10T83/9372; Y10T83/9396; Y10T83/9401
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051491A
Cited
US2136831A
Cited
US2214478A
Cited
US2211862A
Cited
US2319099A
Cited
US2333158A
Cited
US2359140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |