US3397672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for vapor-deposition coating apparatus
Assignee: United States Steel Corp
•
Filing: 1965-11-10
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Granted: 1968-08-20
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Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 Dykeman George
- 👤 Borough Dormont
- 👤 Slamar Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:28
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28; C23C14/30; C23C14/54; C23C14/542; C23C14/545; C23C14/56; C23C14/562; H01J37/30; H01J37/304
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |