Patent US3535493A successfully refreshed from Google Patents.
US3535493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percolator
Assignee: Proctor Silex Inc
•
Filing: 1966-10-31
•
Granted: 1970-10-20
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Walter M Schwartz Jr
- 👤 Charles R Turner
- 👤 Luther P Manship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:52
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/053
Claims Analysis
Total Claims: 0
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US3282196A
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US3369105A
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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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |