US2639254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting 35-millimeter slides to prevent film buckle during projection
Assignee: Eastman Kodak Co
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Filing: 1951-02-27
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Granted: 1953-05-19
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Expires: 1971-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64; Y; Y10; Y10S; Y10S493/00; Y10S493/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD OF MOUNTING A TRANSPARENCY IN A MOUNT COMPOSED OF A PAIR OF APERTURED MEMBERS ADAPTED TO BE ARRANGED IN OVERLYING RELATION WITH SAID APERTURES IN REGISTRY TO FRAME AND IMAGE AREA OF A TRANSPARENCY, AT LEAST ONE OF SAID MEMBERS BEING ADHESIVELY COATED, COMPRISING, IN COMBINATION, POSITIONING SAID TRANSPARENCY ON ONE OF SAID MEMBERS WITH THE IMAGE AREA IN REGISTRY WITH THE APERTURE THEREOF, PREHEATING SAID TRANSPARENCY, AND THEN SEALING THE EDGES OF SAID TRANSPARENCY WHILE STILL HEATED TO SAID COATED MEMBER.
Claim 2
Independent Claim
84 words
A METHOD OF MOUNTING A TRANSPARENCY IN A MOUNT COMPOSED OF A PAIR OF APERTURED MEMBERS ADAPTED TO BE ARRANGED IN OVERLYING RELATION WITH SAID APERTURES IN REGISTRY TO FRAME AND IMAGE AREA OF A TRANSPARENCY, AT LEAST ONE OF SAID MEMBERS BEING ADHESIVELY COATED, COMPRISING, IN COMBINATION, POSITIONING SAID TRANSPARENCY ON ONE OF SAID MEMBERS WITH THE IMAGE AREA IN REGISTRY WITH THE APERTURE THEREOF, PREHEATING SAID TRANSPARENCY, AND THEN SEALING THE EDGES OF SAID TRANSPARENCY WHILE STILL HEATED TO SAID COATED MEMBER.
References Cited (Backward Citations)
US2184007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |