Patent US1500921A successfully refreshed from Google Patents.
US1500921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pipe line
Assignee: Individual
•
Filing: 1919-06-21
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Granted: 1924-07-08
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Expires: 1939-06-21
Abstract
No abstract record available.
Inventors
- 👤 Bramson Mogens Louis
- 👤 Hanson James
- 👤 Caldwell Thomas Bethell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:39
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/14; F16L11/18; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32032
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) | 1927-07-08 | 1928-01-07 | 1928-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-08 | 1932-01-07 | 1932-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-08 | 1936-01-07 | 1936-07-08 | $7700.00 | Window Closed / Lapsed |