US3515649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-plating conditioning process
Assignee: IVAN C HEPFER
•
Filing: 1967-05-02
•
Granted: 1970-06-02
•
Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Ivan C Hepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:40
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/83; C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C23C18/24; C23C18/28; C23C18/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2690402A
Cited
US2876116A
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US2929742A
Cited
US3044891A
Cited
US3265511A
Cited
US3392035A
Cited
US3317330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |