Patent US3192921A successfully refreshed from Google Patents.
US3426798A
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US
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Resilient seat cup with fins
Assignee: Tomlinson Industries Inc
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Filing: 1966-09-13
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Granted: 1969-02-11
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Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 John A Chernak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:06
CPC Classifications
B; B67; B67D; B67D3/00; B67D3/04; B67D3/043; F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |