US2991877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for cladding article
Assignee: Knapp Mills Inc
•
Filing: 1958-03-20
•
Granted: 1961-07-11
•
Expires: 1978-03-20
Abstract
No abstract record available.
Inventors
- 👤 Victor E Knapp
- 👤 Otto F Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:14
CPC Classifications
B; B21; B21C; B21C25/00; B21C25/06; B21C23/00; B21C23/22; B21C23/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US275859A
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US431295A
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US670611A
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GB190107224A
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GB373984A
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US2084149A
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FR770547A
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DE618446C
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US2320801A
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US2499566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |