US2601082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete and shuttering floor structure
Assignee: Keasbey and Mattison Co
•
Filing: 1946-04-25
•
Granted: 1952-06-17
•
Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ashman Herbert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:54
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1109785A
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US1508871A
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US1679947A
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US1872984A
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US1986999A
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FR747397A
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US2065920A
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US2131652A
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US2180504A
Cited
GB498590A
Cited
US2424080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |