US2773346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile spindle
Assignee: Draper Corp
•
Filing: 1953-05-18
•
Granted: 1956-12-11
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Richard L Childs
- 👤 Cranshaw Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:22
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/04; D01H7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2066659A
Cited
GB523972A
Cited
GB562849A
Cited
US2485959A
Cited
US2599720A
Cited
US2488879A
Cited
US2647701A
Cited
US2639576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |