Patent US2599478A successfully refreshed from Google Patents.
US2599478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making devices which have selenium as constituent parts thereof
Assignee: Vickers Inc
•
Filing: 1948-03-15
•
Granted: 1952-06-03
•
Expires: 1968-03-15
Abstract
No abstract record available.
Inventors
- 👤 Carl E Peters
- 👤 David W Rau
- 👤 August H Bruemmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:06
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/0431
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2276647A
Cited
US2413013A
Cited
US2393938A
Cited
US2364642A
Cited
US2378438A
Cited
US2380026A
Cited
US2423051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |