US2772474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet trimmer
Assignee: ROBERTS Manufacturing Co
•
Filing: 1953-05-04
•
Granted: 1956-12-04
•
Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Harvey J Hill
- 👤 Jack W Petty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:02
CPC Classifications
B; B26; B26B; B26B5/00; A; A47; A47G; A47G27/00; A47G27/04; A47G27/0487; B26B5/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1255860A
Cited
GB283458A
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US2007396A
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US2310838A
Cited
US2411927A
Cited
US2601183A
Cited
US2607115A
Cited
US2666986A
Cited
US2648905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |