US3419916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner type pool construction
Assignee: Individual
•
Filing: 1966-10-03
•
Granted: 1969-01-07
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Martin M Schankler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:08
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/141; E04H4/142; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/161; Y10T428/169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A LINER TYPE POOL, GENERALLY VERTICALLY UPWARDLY EXTNDING SIDE WALL MEANS, AND BOTTOM MEANS, SAID BOTTOM MEANS INCLUDING A PLURALITY OF BOTTOM SECTIONS, EACH BOTTOM SECTION INCLUDING A RIGID, GENERALLY SHEETLIKE MEMBER, FIRST FLEXIBLE HINGE MEANS BETWEEN ADJACENT BOTTOM SECTIONS, SAID FIRST FLEXIBLE HINGE MEANS INCLUDING A LAYER OF MOISTURE RESISTANT, FLEXIBLE SHEET-LIKE MATERIAL WHICH FORMS A BARRIER TO WATER PASSAGE BETWEEN ADJACENT BOTTOM SECTIONS, SECOND FLEXIBLE HINGE MEANS BETWEEN EACH BOTTOM SECTION AND ITS ASSOCIATED ADJOINING SIDE WALL MEANS, SAID SECOND FLEXIBLE HINGE MEANS INCLUDING A LAYER OF MOISTURE RESISTANT, FLEXIBLE SHEET-LIKE MATERIAL WHICH FORMS A BARRIER TO WATER PASSAGE BETWEEN THE SIDE WALL MEANS AND THE BOTTOM MEANS.
Claim 2
Dependent Claim
111 words
IN A LINER TYPE POOL, GENERALLY VERTICALLY UPWARDLY EXTNDING SIDE WALL MEANS, AND BOTTOM MEANS, SAID BOTTOM MEANS INCLUDING A PLURALITY OF BOTTOM SECTIONS, EACH BOTTOM SECTION INCLUDING A RIGID, GENERALLY SHEETLIKE MEMBER, FIRST FLEXIBLE HINGE MEANS BETWEEN ADJACENT BOTTOM SECTIONS, SAID FIRST FLEXIBLE HINGE MEANS INCLUDING A LAYER OF MOISTURE RESISTANT, FLEXIBLE SHEET-LIKE MATERIAL WHICH FORMS A BARRIER TO WATER PASSAGE BETWEEN ADJACENT BOTTOM SECTIONS, SECOND FLEXIBLE HINGE MEANS BETWEEN EACH BOTTOM SECTION AND ITS ASSOCIATED ADJOINING SIDE WALL MEANS, SAID SECOND FLEXIBLE HINGE MEANS INCLUDING A LAYER OF MOISTURE RESISTANT, FLEXIBLE SHEET-LIKE MATERIAL WHICH FORMS A BARRIER TO WATER PASSAGE BETWEEN THE SIDE WALL MEANS AND THE BOTTOM MEANS.
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |