US2682679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary sweeper brush having plastic impregnated core
Assignee: Wayne Manufacturing Co
•
Filing: 1951-12-24
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Granted: 1954-07-06
•
Expires: 1971-12-24
Abstract
No abstract record available.
Inventors
- 👤 Louis M Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:31
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950379A
Cited
US2045373A
Cited
US2357763A
Cited
US2553748A
Cited
US2505610A
Cited
US2604362A
Cited
US2520863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |