Patent US3632039A successfully refreshed from Google Patents.
US3632039A
Expired / Lapsed
US
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Laundry bag
Assignee: National Patent Development Corp
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Filing: 1970-08-25
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Granted: 1972-01-04
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Expires: 1990-08-25
Abstract
Abstract A disposable bag is made of a plurality of pieces of waterinsoluble polymer joined by a water-soluble adhesive. When the bag is employed, for example as a laundry bag thrown into a washer, it comes apart in the water. Preferably the bag is heat shrinkable so that its volume is reduced when it is placed in the water. The bag can contain a germicide as a coating or dispersed throughout the polymer.
Inventors
- 👤 Robert Gayle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:51
CPC Classifications
B; B65; B65D; B65D31/00; Y; Y10; Y10S; Y10S220/00; Y10S220/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
15 words
A bag according to claim 1 wherein the polymer is a biaxially oriented heat-shrinkable polymer.
Claim 2
Dependent Claim
18 words
A bag according to claim 2 having a germicide dispersed therethrough or coated on a wall surface thereof.
Claim 3
Dependent Claim
9 words
A bag according to claim 3 having laundry therein.
References Cited (Backward Citations)
US3347297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |