US2875711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam or truss arch constructions
Assignee: Individual
•
Filing: 1953-09-21
•
Granted: 1959-03-03
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Mackintosh Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:47
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/38; E04C3/40; E04C3/02; E04C3/04; E04C3/11; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US770050A
Cited
US796433A
Cited
US1097934A
Cited
US1552777A
Cited
US1678738A
Cited
GB549051A
Cited
US2642825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |