US3453831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming and driving thin wall pipe pile and boot
Assignee: MILLGARD Corp A CORP OF MICH
•
Filing: 1968-01-25
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Granted: 1969-07-08
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Expires: 1988-01-25
Abstract
No abstract record available.
Inventors
- 👤 Fredric Rusche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:30
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/28; E02D7/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49911; Y10T29/49925; Y10T29/49927; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2979712A
Cited
US3326006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |