US2983104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional piles
Assignee: Brunspile Corp
•
Filing: 1958-10-14
•
Granted: 1961-05-09
•
Expires: 1978-10-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Bruns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/58; E02D5/52; E02D5/523; Y; Y10; Y10T; Y10T403/00; Y10T403/57; Y10T403/5733
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1954070A
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US2065507A
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US2342243A
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US2295489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |