Patent US3562982A successfully refreshed from Google Patents.
US3562982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall and foundation drain system
Assignee: Individual
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Filing: 1969-05-09
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Granted: 1971-02-16
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Expires: 1989-05-09
Abstract
Abstract WATER ACCUMULATING IN THE SUPPORTING BED OF GRAVEL BENEATH A CELLAR FLOOR IS FORCED BY HYDROSTATIC PRESSURE LATERALLY INTO THE HOLLOW INTERIORS OF CEMENT OR CINDER BLOCKS THAT ARE MOUNTED ON FOUNDATION FOOTINGS TO CONSTITUTE THE BASE COURSE OF CONVENTIONAL HOLLOW CINDER BLODK CELLAR WALLS. THE WATER PASSES THROUGH SLOTS IN THE INNER SIDE WALLS OF THE BLOCKS AND THE INTERIORS OF THE BLOCKS ARE IN OPEN COMMUNICATION THROUGH SIMILAR SLOTS IN THE END WALLS OF THE BLOCKS.
Inventors
- 👤 Allen C Parezo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:23
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/70; E04B1/703; E04B1/7023; E04B1/7038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |