Patent US2766442A successfully refreshed from Google Patents.
US2766442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak detection apparatus
Assignee: Individual
•
Filing: 1952-11-26
•
Granted: 1956-10-09
•
Expires: 1972-11-26
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:00
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/16; G01M3/18; G01M3/183; F; F16; F16L; F16L2101/00; F16L2101/30; Y; Y10; Y10S; Y10S165/00; Y10S165/001; Y10S165/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1678591A
Cited
US1778398A
Cited
US2438441A
Cited
US2600891A
Cited
US2475023A
Cited
US2610267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |