US2768656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headspacer
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1953-06-22
•
Granted: 1956-10-30
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Carl L Day
- 👤 Frederick E Fauth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1177792A
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US2432823A
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US2529199A
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US2562364A
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US2571036A
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US2652954A
Cited
US2630952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |