Patent US2432988A successfully refreshed from Google Patents.
US2432988A
Expired / Lapsed
US
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Crown cap assembling machine which aligns gaskets and indicates any misalignment
Assignee: Armstrong World Industries Inc
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Filing: 1942-07-29
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Granted: 1947-12-23
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Expires: 1962-07-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:46
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/446; B21D51/46; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US665092A
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US798549A
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US1185895A
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US1358255A
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US1574914A
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US1668922A
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US1736092A
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US2102605A
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US2108163A
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US2351888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |