US2847708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for making die inserts
Assignee: ZF Active Safety US Inc
•
Filing: 1953-08-20
•
Granted: 1958-08-19
•
Expires: 1973-08-20
Abstract
No abstract record available.
Inventors
- 👤 Harry J Hamjian
- 👤 Falih N Darmara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:44
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/02; B22F3/04; Y; Y10; Y10S; Y10S425/00; Y10S425/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1226470A
Cited
US2024092A
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US2129240A
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US2169281A
Cited
US2172243A
Cited
US2331909A
Cited
US2648125A
Cited
US2558823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |