US725937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-resisting seal.
Assignee: Individual
•
Filing: 1901-10-26
•
Granted: 1903-04-21
•
Expires: 1921-10-26
Abstract
No abstract record available.
Inventors
- 👤 David Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:27
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/16; F; F16; F16L; F16L23/00; F16L23/16; F16L23/165; Y; Y10; Y10T; Y10T137/00; Y10T137/4456
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) | 1906-04-20 | 1906-10-20 | 1907-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-04-20 | 1910-10-20 | 1911-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-04-20 | 1914-10-20 | 1915-04-21 | $7700.00 | Window Closed / Lapsed |