US3528278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining the presence of vapor in a gas
Assignee: Technology Inc
•
Filing: 1967-09-05
•
Granted: 1970-09-15
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Expires: 1987-09-05
Abstract
No abstract record available.
Inventors
- 👤 John Jerome Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/55; G01N21/552; G01N25/00; G01N25/56; G01N25/66; G01N25/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23287E
Cited
US2376209A
Cited
US2620660A
Cited
US3120125A
Cited
GB925004A
Cited
US3252319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |