US2876791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-handling apparatus
Assignee: Barnstead Still and Sterilizer Co
•
Filing: 1956-06-20
•
Granted: 1959-03-10
•
Expires: 1976-06-20
Abstract
No abstract record available.
Inventors
- 👤 Verity C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:51
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; G; G21; G21F; G21F7/00; G21F7/06; G21F7/068; Y; Y10; Y10T; Y10T137/00; Y10T137/598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US974651A
Cited
US1861396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |