US3493995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming a liner on a closure
Assignee: Armstrong World Industries Inc
•
Filing: 1967-09-25
•
Granted: 1970-02-10
•
Expires: 1987-09-25
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:24
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/46; Y; Y10; Y10S; Y10S425/00; Y10S425/809
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1253316A
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US1415018A
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US1856319A
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US1668349A
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US1793089A
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US2260667A
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US2657426A
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US2963738A
Cited
US3135019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |