US2774049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulb protector
Assignee: Individual
•
Filing: 1952-03-25
•
Granted: 1956-12-11
•
Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Kibler
- 👤 William J Mcniff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:02
CPC Classifications
F; F21; F21S; F21S4/00; F21S4/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US844321A
Cited
US963191A
Cited
US1151219A
Cited
US1289076A
Cited
US1348970A
Cited
US1637864A
Cited
US2446564A
Cited
US2448236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |