US2448686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loop cutting mechanism
Assignee: Parks and Woolson Machine Co
•
Filing: 1946-05-11
•
Granted: 1948-09-07
•
Expires: 1966-05-11
Abstract
No abstract record available.
Inventors
- 👤 Charles G Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:49
CPC Classifications
D; D03; D03D; D03D49/00; D03D49/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR501891A
Cited
US1757536A
Cited
US1973104A
Cited
US1880488A
Cited
US2110567A
Cited
US2086392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |