US3519117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed roller construction and drive
Assignee: Singer Co
•
Filing: 1969-05-23
•
Granted: 1970-07-07
•
Expires: 1989-05-23
Abstract
No abstract record available.
Inventors
- 👤 Orbert S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:57
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1145017A
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US1105853A
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US991706A
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US1118101A
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US1296191A
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US1900102A
Cited
US2163944A
Cited
US2274834A
Cited
US2356842A
Cited
US2787357A
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US2772765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |