US2416211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating articles
Assignee: American Optical Corp
•
Filing: 1943-09-15
•
Granted: 1947-02-18
•
Expires: 1963-09-15
Abstract
No abstract record available.
Inventors
- 👤 Osterberg Harold
- 👤 Paul C Heijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:09
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2074281A
Cited
US2100045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |