Patent US3852947A successfully refreshed from Google Patents.
Patent US1486831A successfully refreshed from Google Patents.
US1486831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-drive mechanism for bobbin shafts of roving frames
Assignee: Woonsocket Machine & Press Co
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Filing: 1923-10-29
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Granted: 1924-03-11
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Expires: 1943-10-29
Abstract
No abstract record available.
Inventors
- 👤 Brook Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:59
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-03-11 | 1927-09-10 | 1928-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-11 | 1931-09-10 | 1932-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-11 | 1935-09-10 | 1936-03-11 | $7700.00 | Window Closed / Lapsed |