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US2489165A
Expired / Lapsed
US
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Drafting board
Assignee: Individual
•
Filing: 1946-06-25
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Granted: 1949-11-22
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Expires: 1966-06-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:34
CPC Classifications
B; B43; B43L; B43L5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR465178A
Cited
US1745188A
Cited
US1987382A
Cited
US2000247A
Cited
US2060355A
Cited
FR814649A
Cited
FR818327A
Cited
US2393228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |