Patent US2008934A successfully refreshed from Google Patents.
US2008934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak detector for pipe lines
Assignee: Individual
•
Filing: 1933-04-11
•
Granted: 1935-07-23
•
Expires: 1953-04-11
Abstract
No abstract record available.
Inventors
- 👤 Alonzo L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:20
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/24; G01M3/243; G01H; G01H3/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1938-07-22 | 1939-01-21 | 1939-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-22 | 1943-01-21 | 1943-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-22 | 1947-01-21 | 1947-07-23 | $7700.00 | Window Closed / Lapsed |