US2811131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic coating machine for incandescent lamp envelopes
Assignee: Westinghouse Electric Corp
•
Filing: 1956-08-13
•
Granted: 1957-10-29
•
Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Lopenski
- 👤 Meister George
- 👤 Albert W Wainio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:27
CPC Classifications
H; H01; H01K; H01K3/00; H01K3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1655290A
Cited
US1900104A
Cited
US2538562A
Cited
US2626874A
Cited
US2569852A
Cited
US2716620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |