Patent US2718248A successfully refreshed from Google Patents.
US2718248A
Expired / Lapsed
US
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Portable motor driven plane
Assignee: WHITEHEAD STAMPING Co
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Filing: 1952-08-11
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Granted: 1955-09-20
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Expires: 1972-08-11
Abstract
No abstract record available.
Inventors
- 👤 William J Dimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:49
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; B27; B27C; B27C1/00; B27C1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1357985A
Cited
FR530334A
Cited
US1530028A
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US1706157A
Cited
US2307464A
Cited
US2349112A
Cited
US2544098A
Cited
US2544461A
Cited
US2609849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |