US3438397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure test plug and means for bypassing gas meters
Assignee: Universal Controls Corp
•
Filing: 1965-10-20
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Granted: 1969-04-15
•
Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 William V Gilpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:09
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/18; G01F15/185; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0413; Y10T137/598; Y10T137/5997; Y10T137/612; Y10T137/8593; Y10T137/87265; Y10T137/8733; Y10T137/87338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA578876A
Cited
US2618978A
Cited
US2731028A
Cited
US3064684A
Cited
FR1256262A
Cited
US3131712A
Cited
US3173295A
Cited
US3296861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |