US2527747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating articles by thermal evaporation
Assignee: Individual
•
Filing: 1946-01-03
•
Granted: 1950-10-31
•
Expires: 1966-01-03
Abstract
No abstract record available.
Inventors
- 👤 Margaret N Lewis
- 👤 Jr Park H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:32
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053; C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28; C23C14/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326794A
Cited
US1584728A
Cited
US2103623A
Cited
US2239642A
Cited
US2157478A
Cited
US2435997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |