US2422935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lug for guide cards
Assignee: General Fireproofing Co
•
Filing: 1944-09-05
•
Granted: 1947-06-24
•
Expires: 1964-09-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Straubel
- 👤 John S Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:29
CPC Classifications
B; B42; B42F; B42F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US785465A
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US1367550A
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US1489346A
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US1654555A
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US1707917A
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US2042167A
Cited
US1955592A
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US1983577A
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US2110610A
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US2097018A
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US2235736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |