US2551688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighter
Assignee: STRATFORD PEN Corp
•
Filing: 1949-11-01
•
Granted: 1951-05-08
•
Expires: 1969-11-01
Abstract
No abstract record available.
Inventors
- 👤 Charles L Metzler
- 👤 Bowen Billi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:15
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE622094C
Cited
FR338224A
Cited
US1995380A
Cited
AT135370B
Cited
FR787706A
Cited
FR810535A
Cited
US2376404A
Cited
FR923219A
Cited
US2495345A
Cited
US2509744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |