Patent US3309728A successfully refreshed from Google Patents.
US3309728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable brush holder
Assignee: Scovill Inc
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Filing: 1965-02-17
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Granted: 1967-03-21
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Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Donald A Seaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:22
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/02; A46B7/023
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |