Patent US2853778A successfully refreshed from Google Patents.
US2853778A
Expired / Lapsed
US
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Wall paper edger-trimmers
Assignee: Individual
•
Filing: 1955-11-16
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Granted: 1958-09-30
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Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 William J Pratt
- 👤 Douglas P Blakely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/006; B44; B44C; B44C7/00; B44C7/02; B44C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1863153A
Cited
US2018149A
Cited
US2349734A
Cited
US2437896A
Cited
US2498107A
Cited
US2473551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |