US2947223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear machine or the like
Assignee: Gleason Works
•
Filing: 1956-07-02
•
Granted: 1960-08-02
•
Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Carlsen
- 👤 Adolph H Krastel
- 👤 Herman A Male
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:21
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/08; B23F9/10; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/104134; Y10T409/104452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932781A
Cited
US2006790A
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US2063414A
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US2184232A
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US2101544A
Cited
US2187992A
Cited
US2504968A
Cited
US2634657A
Cited
US2607234A
Cited
US2739501A
Cited
US2725792A
Cited
US2797799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |