US3361547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of gas leaks
Assignee: Individual
•
Filing: 1966-07-25
•
Granted: 1968-01-02
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Packo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:05
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; C; C10; C10L; C10L3/00; C10L3/003; C10L3/006; G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/20; G01N; G01N31/00; G01N31/22; G01N31/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1438463A
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US1967871A
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US2068614A
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US2345090A
Cited
US2353287A
Cited
US2395489A
Cited
US2764556A
Cited
US3234045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |