US2620993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web winding device
Assignee: EIDP Inc
•
Filing: 1950-03-24
•
Granted: 1952-12-09
•
Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Douglas Creelman Jeffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/26; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1154301A
Cited
US1256659A
Cited
US1248542A
Cited
US1764322A
Cited
US1555391A
Cited
US2461246A
Cited
US2537588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |