Patent US3548875A successfully refreshed from Google Patents.
US3548875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve cartridge
Assignee: Speakman Co
•
Filing: 1969-03-28
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Granted: 1970-12-22
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Expires: 1989-03-28
Abstract
No abstract record available.
Inventors
- 👤 Carmen J Lagarelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:31
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/078; F16K3/00; F16K3/22; F16K3/24; F16K3/26; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/8593; Y10T137/86493; Y10T137/86549; Y10T137/86815; Y10T137/86823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |