Patent US2960831A successfully refreshed from Google Patents.
US2960831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injector
Assignee: STICKLER ASSOCIATES Inc
•
Filing: 1954-03-12
•
Granted: 1960-11-22
•
Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Robert F Lonaberger
- 👤 Hahn Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:37
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/12; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/127; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2357769A
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GB639074A
Cited
US2634748A
Cited
US2602516A
Cited
US2808293A
Cited
US2860489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |