US2611230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning frame
Assignee: Individual
•
Filing: 1950-02-03
•
Granted: 1952-09-23
•
Expires: 1970-02-03
Abstract
No abstract record available.
Inventors
- 👤 Erle F Saunders
- 👤 Drysdale Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:01
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/18; D01H13/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581745A
Cited
US1442872A
Cited
GB191216096A
Cited
US1422745A
Cited
US1735102A
Cited
US2064491A
Cited
GB605365A
Cited
US2456406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |