Patent US4897869A successfully refreshed from Google Patents.
Patent US1787734A successfully refreshed from Google Patents.
US1787734A
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Assignee: Individual
•
Filing: 1929-01-21
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Granted: 1931-01-06
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Expires: 1949-01-21
Abstract
No abstract record available.
Inventors
- 👤 Rowling Thomas Noble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:42
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/08; F16L3/10; F16L3/1008; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1414; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18232
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) | 1934-01-05 | 1934-07-07 | 1935-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-01-05 | 1938-07-07 | 1939-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-01-05 | 1942-07-07 | 1943-01-06 | $7700.00 | Window Closed / Lapsed |