Patent US3396545A successfully refreshed from Google Patents.
US3396545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming concrete bodies
Assignee: Construction Techniques Inc
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Filing: 1965-04-07
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Granted: 1968-08-13
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Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 Lamberton Bruce Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:40
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/04; B; B28; B28B; B28B13/00; B28B13/02; B28B13/021; B28B7/00; B28B7/06; B28B7/34; B28B7/344; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02D; E02D15/00; E02D15/02; E02D15/06; E02D17/00; E02D17/02; E02D17/04; E02D17/06; E02D17/08; E02D29/00; E02D29/06; E04G11/045; E21; E21D; E21D11/00; E21D11/04; E21D11/10; E21D15/00; E21D15/48; E21D15/483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |