US2665662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating machine for sheet material
Assignee: Potdevin Machine Co
•
Filing: 1951-01-13
•
Granted: 1954-01-12
•
Expires: 1971-01-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Richmond
- 👤 Louis A Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:06
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/02; B05C1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1981321A
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US2013056A
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US2159641A
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US2236239A
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US2161325A
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US2444878A
Cited
US2461388A
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US2493165A
Cited
US2506650A
Cited
US2520768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |