US2726324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp bases
Assignee: Individual
•
Filing: 1953-06-30
•
Granted: 1955-12-06
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:49
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/08; F21V21/0824; F21V21/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US742871A
Cited
US1656148A
Cited
US1677972A
Cited
US1784474A
Cited
US1819733A
Cited
US2188529A
Cited
US2277532A
Cited
GB573350A
Cited
US2450141A
Cited
US2633360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |