US1582767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polish-rod support
Assignee: Individual
•
Filing: 1925-10-06
•
Granted: 1926-04-27
•
Expires: 1945-10-06
Abstract
No abstract record available.
Inventors
- 👤 Loop Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:24
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B43/00; E21B43/12; E21B43/121; E21B43/126; E21B43/127; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254
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) | 1929-04-26 | 1929-10-26 | 1930-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-26 | 1933-10-26 | 1934-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-26 | 1937-10-26 | 1938-04-27 | $7700.00 | Window Closed / Lapsed |