US2644276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffing machine for drawing rolls
Assignee: TEXTILE ENGINEERING Corp
•
Filing: 1950-03-16
•
Granted: 1953-07-07
•
Expires: 1970-03-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:17
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1733087A
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US1843414A
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US2106215A
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US2180529A
Cited
GB510558A
Cited
DE725816C
Cited
US2345308A
Cited
US2418871A
Cited
US2508102A
Cited
US2529433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |