Patent US2833550A successfully refreshed from Google Patents.
US2833550A
Expired / Lapsed
US
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Mobile carriers
Assignee: W H FRICK Inc
•
Filing: 1952-04-23
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Granted: 1958-05-06
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Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 William H Frick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US687838A
Cited
US1359032A
Cited
US1781815A
Cited
US1918604A
Cited
US1943023A
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US2297173A
Cited
US2480025A
Cited
US2604334A
Cited
US2571456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |