US2617286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighter construction
Assignee: Individual
•
Filing: 1950-02-25
•
Granted: 1952-11-11
•
Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Michael R Prusack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:53
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE525598C
Cited
DE648280C
Cited
GB191210826A
Cited
US1844481A
Cited
US1961577A
Cited
US2454872A
Cited
US2500119A
Cited
US2509251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |