US3053273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering regulator for anhydrous ammonia
Assignee: Individual
•
Filing: 1958-12-02
•
Granted: 1962-09-11
•
Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Marion J Schreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:16
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/024; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/7822; Y10T137/7823; Y10T137/7825; Y10T137/7826; Y10T137/7827; Y10T137/8593; Y10T137/87917; Y10T137/88046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR555393A
Cited
US1757715A
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US2061642A
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US2058951A
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US2169514A
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US2620817A
Cited
GB707970A
Cited
US2691358A
Cited
US2929402A
Cited
FR1169916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |