US1471386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for stopping leaks in pipes
Assignee: Individual
•
Filing: 1921-05-07
•
Granted: 1923-10-23
•
Expires: 1941-05-07
Abstract
No abstract record available.
Inventors
- 👤 Crockett David Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/17; F16L55/172; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T24/1443; Y10T24/1445; Y10T24/1447; Y10T24/1451
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) | 1926-10-22 | 1927-04-23 | 1927-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-22 | 1931-04-23 | 1931-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-22 | 1935-04-23 | 1935-10-23 | $7700.00 | Window Closed / Lapsed |