US3442555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a rotary brush
Assignee: JENKINS EQUIPMENT CO Inc
•
Filing: 1967-09-29
•
Granted: 1969-05-06
•
Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:06
CPC Classifications
A; A46; A46D; A46D3/00; A46D3/04; A46D3/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1059858A
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US1637823A
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US1706159A
Cited
US2349644A
Cited
GB862359A
Cited
US3059991A
Cited
US3109190A
Cited
US3137020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |