Patent US1593041A successfully refreshed from Google Patents.
US1593041A
Expired / Lapsed
US
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Sealing device for pipes
Assignee: Individual
•
Filing: 1923-01-19
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Granted: 1926-07-20
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Expires: 1943-01-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:11
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/115; F16L55/1152; F16J; F16J13/00; F16J13/02; F16L23/00; F16L23/02; F16L23/036; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/214; Y10T292/221
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) | 1929-07-19 | 1930-01-18 | 1930-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-07-19 | 1934-01-18 | 1934-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-07-19 | 1938-01-18 | 1938-07-20 | $7700.00 | Window Closed / Lapsed |