Patent US2499580A successfully refreshed from Google Patents.
US2499580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector bowl
Assignee: Lightolier Inc
•
Filing: 1948-07-09
•
Granted: 1950-03-07
•
Expires: 1968-07-09
Abstract
No abstract record available.
Inventors
- 👤 Hamel Jacob Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:47
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/002; F21V; F21V13/00; F21V13/02; F21V13/04; F21V5/00; F21V5/02; F21V7/00; F21V7/0008; F21V7/0016; F21V7/0091
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US755197A
Cited
US1480599A
Cited
US1543605A
Cited
US1881767A
Cited
US2043193A
Cited
US2068246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |