Patent US4527980A successfully refreshed from Google Patents.
Patent US1776776A successfully refreshed from Google Patents.
US1776776A
Expired / Lapsed
US
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Liner setter and puller
Assignee: Individual
•
Filing: 1929-03-18
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Granted: 1930-09-30
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Expires: 1949-03-18
Abstract
No abstract record available.
Inventors
- 👤 Byron F Blackmarr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53878; Y10T29/53887
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) | 1933-09-29 | 1934-03-31 | 1934-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-09-29 | 1938-03-31 | 1938-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-09-29 | 1942-03-31 | 1942-09-30 | $7700.00 | Window Closed / Lapsed |