US2842786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridges
Assignee: Engineering & Ind Exports Ltd
•
Filing: 1953-06-22
•
Granted: 1958-07-15
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Digby-Smith Rodman
- 👤 Sefton-Jenkins Ralph Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:40
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12; E01D15/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US530425A
Cited
US534032A
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US762632A
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US922885A
Cited
US932118A
Cited
US1594505A
Cited
US2155121A
Cited
US2101538A
Cited
US2510958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |