Patent US3517693A successfully refreshed from Google Patents.
US3517693A
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Low gas signal and indicator for gas cylinders
Assignee: Henry G Dietz Co Inc
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Filing: 1967-08-24
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Granted: 1970-06-30
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Expires: 1987-08-24
Abstract
No abstract record available.
Inventors
- 👤 Henry G Dietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:49
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C13/025; G; G01; G01L; G01L19/00; G01L19/08; G01L19/12; G01L7/00; G01L7/16; G01L7/163; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0329; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2250/00; F17C2250/03; F17C2250/036; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/07; F17C2250/072; F17C2250/077; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE22449C
Cited
US1165026A
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FR800729A
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US2631607A
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US2759448A
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US3144171A
Cited
US3224409A
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US3279418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |