US694939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caisson for subaqueous work.
Assignee: Individual
•
Filing: 1901-05-09
•
Granted: 1902-03-11
•
Expires: 1921-05-09
Abstract
No abstract record available.
Inventors
- 👤 Charles Blagburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:31
CPC Classifications
E; E02; E02D; E02D23/00; E02D23/04; E02D23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1905-03-10 | 1905-09-09 | 1906-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-03-10 | 1909-09-09 | 1910-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-03-10 | 1913-09-09 | 1914-03-11 | $7700.00 | Window Closed / Lapsed |