US3443373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed spinning frame
Assignee: Jefferson Mills Inc
•
Filing: 1966-11-21
•
Granted: 1969-05-13
•
Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Morris M Bryan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D01H1/28; D01H1/30; D01H1/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1658652A
Cited
US1934999A
Cited
US2056019A
Cited
US2095818A
Cited
US2168449A
Cited
US2320896A
Cited
US3137987A
Cited
US3325985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |