Patent US2664394A successfully refreshed from Google Patents.
US4149286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterbed safety liner
Assignee: CLASSIC PRODUCTS CORP
•
Filing: 1977-12-30
•
Granted: 1979-04-17
•
Expires: 1997-12-30
Abstract
Abstract A waterproof waterbed safety liner is disclosed which completely encloses a waterbed mattress. The waterbed safety liner comprises top and bottom sheets welded together, wherein the top sheet has an opening for inserting the waterbed mattress, and a waterproof zipper closure for sealing the mattress in the safety liner. Should the waterbed mattress leak, the safety liner will prevent the water from spilling on the surrounding floor surface.
Inventors
- 👤 Isaac Fogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:27
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A waterbed mattress safety liner for completely enclosing a water filled waterbed mattress comprising: a bottom sheet, a top sheet, said bottom sheet and said top sheet thermally welded together to form a waterproof envelope for holding a waterbed mattress, a longitudinal opening in said top sheet, a watertight closure means in said top sheet to close said longitudinal opening, and said safety liner being a waterproof material to contain the water from a waterbed mattress in case of a leak.
Claim 2
Dependent Claim
81 words
A waterbed mattress safety liner for completely enclosing a water filled waterbed mattress comprising: a bottom sheet, a top sheet, said bottom sheet and said top sheet thermally welded together to form a waterproof envelope for holding a waterbed mattress, a longitudinal opening in said top sheet, a watertight closure means in said top sheet to close said longitudinal opening, and said safety liner being a waterproof material to contain the water from a waterbed mattress in case of a leak.
Claim 3
Dependent Claim
17 words
A waterbed safety liner as claimed in claim 1 wherein said closure means is a zipper closure.
Claim 4
Dependent Claim
18 words
A waterbed mattress safety liner as claimed in claim 2 wherein said zipper closure forms a waterproof seal.
Claim 5
Dependent Claim
28 words
A waterbed mattress safety liner as claimed in claim 1 wherein said top sheet and said bottom sheet are of a waterproof vinyl plastic of 20 mil thickness.
Claim 6
Dependent Claim
25 words
A waterbed safety mattress as claimed in claim 2 wherein the zipper closure is of heavy duty molded plastic with tongue and groove construction elements.
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) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |