Patent US2472162A successfully refreshed from Google Patents.
US2472162A
Expired / Lapsed
US
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Mullion
Assignee: CRITTALL FEDERAL Inc
•
Filing: 1946-03-01
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Granted: 1949-06-07
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Expires: 1966-03-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Kuney
- 👤 Howard J Wurst
- 👤 Roland J Serzow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:57
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/56; E06B1/60; E06B1/6007; Y; Y10; Y10T; Y10T403/00; Y10T403/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US260871A
Cited
US1157827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |