US3427156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintering method and article manufactured thereby
Assignee: Sintermetallwerk Krebsoege GmbH
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Filing: 1965-12-14
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Granted: 1969-02-11
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Expires: 1985-12-14
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Reinstadler
- 👤 Kreis Hunfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:57
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/20; H01F1/22; H01F41/00; H01F41/02; H01F41/0206; H01F41/0246; H02; H02K; H02K15/00; H02K15/02; H02K15/021; H02K15/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |