US3437507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plating of substrates
Assignee: McDonnell Douglas Corp
•
Filing: 1965-07-16
•
Granted: 1969-04-08
•
Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Darwin P Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:52
CPC Classifications
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)
US2027358A
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US2410844A
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US2454610A
Cited
US2984603A
Cited
US3142581A
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US3212918A
Cited
FR1392978A
Cited
US3379556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |