Patent US2942972A successfully refreshed from Google Patents.
US2942972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic stencil negatives or positives
Assignee: Photoceramics Inc
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Filing: 1954-01-06
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Granted: 1960-06-28
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Expires: 1974-01-06
Abstract
No abstract record available.
Inventors
- 👤 Alexander E Charlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:38
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F1/56; G03F7/00; G03F7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
THE METHOD OF PHOTOGRAPHICALLY DECORATING OBJECTS COMPRISING PLACING THE OBJECT TO BE DECORATED IN AN ENCLOSURE HAVING ONE TRANSPARENT FLEXIBLE WALL, APPLYING A FILM COATING OF LIGHT SENSITIVE MATERIAL TO THE OBJECT NEXT ADJACENT THE FLEXIBLE WALL, OVERLAYING THE FILM COATING WITH A PHOTOGRAPHIC STENCIL, EVACUATING AIR FROM THE ENCLOSURE TO CAUSE THE FLEXIBLE WALL TO DRAW THE STENCIL INTO CLOSE CONTACT WITH THE FILM COATING, AND EXPOSING THE STENCIL TO LIGHT FOR FORMING THE STENCIL DESIGN IN THE LIGHT SENSITIVE MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |