US2889615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fabricating hollow blades
Assignee: Stalker Corp
•
Filing: 1955-02-23
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Granted: 1959-06-09
•
Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:29
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/04; B23K; B23K1/00; B23K1/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339; Y10T29/49826; Y10T29/49879; Y10T29/49893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191511286A
Cited
DE733133C
Cited
US2577336A
Cited
US2427747A
Cited
US2649243A
Cited
US2699598A
Cited
US2723445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |