US1587637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flux
Assignee: Pyrene Manufacturing Co
•
Filing: 1922-07-29
•
Granted: 1926-06-08
•
Expires: 1942-07-29
Abstract
No abstract record available.
Inventors
- 👤 Ferguson George Ennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34
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) | 1929-06-07 | 1929-12-07 | 1930-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-06-07 | 1933-12-07 | 1934-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-06-07 | 1937-12-07 | 1938-06-08 | $7700.00 | Window Closed / Lapsed |