US2329557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: Holophane Corp
•
Filing: 1941-01-11
•
Granted: 1943-09-14
•
Expires: 1961-01-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Rolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:12
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/18; B64F1/20; B64F1/205; F; F21; F21W; F21W2111/00; F21W2111/06
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) | 1946-09-13 | 1947-03-15 | 1947-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-13 | 1951-03-15 | 1951-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-13 | 1955-03-15 | 1955-09-14 | $7700.00 | Window Closed / Lapsed |