US2330935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined building walls and lighting equipment
Assignee: Holophane Corp
•
Filing: 1942-01-21
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Granted: 1943-10-05
•
Expires: 1962-01-21
Abstract
No abstract record available.
Inventors
- 👤 Davis H Tuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; F21S8/024; F21V; F21V25/00; F21V25/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-10-04 | 1947-04-05 | 1947-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-04 | 1951-04-05 | 1951-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-04 | 1955-04-05 | 1955-10-05 | $7700.00 | Window Closed / Lapsed |