US3528387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion cleaning and vapor deposition
Assignee: Singer General Precision Inc
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Filing: 1968-05-24
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Granted: 1970-09-15
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Expires: 1988-05-24
Abstract
No abstract record available.
Inventors
- 👤 Harold J Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/58; C23C14/5826; C23C14/5833; C23C14/02; C23C14/021; C23C14/022; C23C14/22; C23C14/24; C23C14/34; C23C14/3471; C23C14/3478; C23C14/5893; C23G; C23G5/00; H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053; H01J37/32; H01J37/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |