Patent US3837890A successfully refreshed from Google Patents.
US3837890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drapery marking method utilizing invisible dyes
Assignee: Individual
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Filing: 1972-12-14
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Granted: 1974-09-24
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Expires: 1992-12-14
Abstract
Abstract A drapery or curtain is hung from an adjustable frame so that it hangs freely in a similar manner to its intended use. One or more dye squirting orifices or nozzles traverse the width of the drapery at predetermined heights to mark cut-off or fold lines on the drapery and/or lining. The dye may be invisible as applied on the drapery and may become visible only when exposed to light of a predetermined wavelength for subsequent cutting, folding or sewing of the drapery. The orifice may be a hypodermic neddle which provides a very thin continuous unbroken liquid stream or jet that marks the line on the drapery.
Inventors
- 👤 P Sumner
- 👤 J Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
D; D06; D06H; D06H1/00; D06H1/006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
A method as in claim 1 including the steps of: adjusting the frame vertically so as to adjust the material and thereby the position of the dye mark on the material.
References Cited (Backward Citations)
US2638656A
Cited
US3688804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |