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US1391503A
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Assignee: Individual
•
Filing: 1920-11-02
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Granted: 1921-09-20
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Expires: 1940-11-02
Abstract
No abstract record available.
Inventors
- 👤 James W Register
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:08
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B9/06; F03; F03G; F03G7/00; F03G7/08; F03G7/081; F03G7/083; F03G7/085
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) | 1924-09-19 | 1925-03-21 | 1925-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-09-19 | 1929-03-21 | 1929-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-09-19 | 1933-03-21 | 1933-09-20 | $7700.00 | Window Closed / Lapsed |