US1833700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plugging device
Assignee: Individual
•
Filing: 1927-05-07
•
Granted: 1931-11-24
•
Expires: 1947-05-07
Abstract
No abstract record available.
Inventors
- 👤 Harry E Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/105; F16K; F16K3/00; F16K3/28; F16L55/12; F16L55/124; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T29/00; Y10T29/53; Y10T29/53552
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) | 1934-11-23 | 1935-05-25 | 1935-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-23 | 1939-05-25 | 1939-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-23 | 1943-05-25 | 1943-11-24 | $7700.00 | Window Closed / Lapsed |