US2601910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite structural member
Assignee: Individual
•
Filing: 1944-05-16
•
Granted: 1952-07-01
•
Expires: 1964-05-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:59
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/18; E04C3/38; E04C3/42; E04C3/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US133306A
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US424798A
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GB189905344A
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US1042808A
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US1368594A
Cited
US1770932A
Cited
GB393576A
Cited
US2035977A
Cited
US2039398A
Cited
US2172703A
Cited
US2380953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |