Patent US2811111A successfully refreshed from Google Patents.
US2811111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machinery trailer for a mobile shop
Assignee: Individual
•
Filing: 1950-12-07
•
Granted: 1957-10-29
•
Expires: 1970-12-07
Abstract
No abstract record available.
Inventors
- 👤 Herman B Levitz
- 👤 James M Dunston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:59
CPC Classifications
A; A21; A21B; A21B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US489003A
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US1444025A
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US1614769A
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FR657513A
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US1773540A
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US1729449A
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GB395411A
Cited
FR816520A
Cited
US2337615A
Cited
GB539090A
Cited
US2358446A
Cited
US2382194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |