US3518834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grouting system
Assignee: SOIL TESTING SERVICES Inc
•
Filing: 1968-05-09
•
Granted: 1970-07-07
•
Expires: 1988-05-09
Abstract
No abstract record available.
Inventors
- 👤 John P Gnaedinger
- 👤 Alvaro L Ruiz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AU256105B
Cited
AT91457B
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US1883622A
Cited
DE588407C
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US2363018A
Cited
US3099911A
Cited
US3260054A
Cited
US3365894A
Cited
US3392785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |