US2333535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax impregnated glass fabric liner and gasket seal
Assignee: Merck and Co Inc
•
Filing: 1939-06-02
•
Granted: 1943-11-02
•
Expires: 1959-06-02
Abstract
No abstract record available.
Inventors
- 👤 Ethan E Lauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:31
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/102; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/2311; Y10T442/2336
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) | 1946-11-01 | 1947-05-03 | 1947-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-01 | 1951-05-03 | 1951-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-01 | 1955-05-03 | 1955-11-02 | $7700.00 | Window Closed / Lapsed |