US2835128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor device pull gauge
Assignee: Greenlee Brothers and Co
•
Filing: 1955-12-14
•
Granted: 1958-05-20
•
Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 Rudolph E Herrstrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/0028; G01L5/0033; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735649A
Cited
US1353600A
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US1387674A
Cited
US2477854A
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US2490284A
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US2504393A
Cited
US2593269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |