US2951647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection nozzle
Assignee: Allis Chalmers Corp
•
Filing: 1957-02-06
•
Granted: 1960-09-06
•
Expires: 1977-02-06
Abstract
No abstract record available.
Inventors
- 👤 Dreisin Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:59
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/06; F02M61/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172556A
Cited
US2732171A
Cited
US2082606A
Cited
US2192803A
Cited
GB530196A
Cited
FR866597A
Cited
US2376292A
Cited
US2812979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |