US3492823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming elongated hardened concrete bodies by pressure grouting
Assignee: Construction Techniques Inc
•
Filing: 1967-03-30
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Granted: 1970-02-03
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Bruce A Lamberton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:44
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/54; E02D5/18; E02D5/34; E02D5/38; E02D5/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE25614E
Cited
US961492A
Cited
US1421857A
Cited
US2497377A
Cited
US2708973A
Cited
US3197964A
Cited
US3345824A
Cited
US3301329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |