US2762149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing perforated metal webs
Assignee: Buckbee Mears Co
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Filing: 1953-04-27
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Granted: 1956-09-11
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Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Norman B Mears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:13
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/08; G; G03; G03F; G03F7/00; G03F7/26; G03F7/30; G03F7/3085; H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; H01J9/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |