US3016525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak annunciator unit
Assignee: Allis Chalmers Corp
•
Filing: 1958-10-07
•
Granted: 1962-01-09
•
Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Jon F Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:59
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/40; G08; G08B; G08B21/00; G08B21/18; G08B21/20; G08B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735089A
Cited
US2611862A
Cited
US2658191A
Cited
US2745021A
Cited
US2939052A
Cited
US2885568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |