Patent US1305997A successfully refreshed from Google Patents.
US1305997A
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US
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Assignee: —
•
Filing: —
•
Granted: 1919-06-10
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Expires: 1936-06-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:28
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/033; F16K15/035; F16K15/036; F16K15/038; F16K15/06; F16K15/063; F16K15/066; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/8593; Y10T137/87265; Y10T137/87555
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) | 1922-06-09 | 1922-12-09 | 1923-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-06-09 | 1926-12-09 | 1927-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-06-09 | 1930-12-09 | 1931-06-10 | $7700.00 | Window Closed / Lapsed |