US3537291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of forming an end closure for a can
Assignee: Reynolds Metals Co
•
Filing: 1967-10-04
•
Granted: 1970-11-03
•
Expires: 1987-10-04
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:47
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/20; B21D22/22; B21D51/00; B21D51/16; B21D51/38; B21D51/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2225710A
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US2434375A
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US3302441A
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US3372569A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |