US3206601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic film thermography
Assignee: Keuffel and Esser Co
•
Filing: 1963-07-31
•
Granted: 1965-09-14
•
Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:52
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306; B; B41; B41M; B41M5/00; B41M5/26; B41M5/36; B41M7/00; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A METHOD OF OBTAINING A VISIBLE IMAGE IN A LAYER OF THERMOPLASTIC RESIN COMPRISING THE STEPS OF: APPLYING HEAT IMAGEWISE TO SAID LAYER TO PRODUCE A HEAT-CREATED PERMANENT, DEVELOPABLE, LATENT IMAGE THEREIN, AND PLACING SAID LAYER BETWEEN CROSSED OPTICAL POLARIZERS TO OBTAIN A VISIBLE IMAGE BY TRANSMITTED LIGHT.
Claim 2
Independent Claim
48 words
A METHOD OF OBTAINING A VISIBLE IMAGE IN A LAYER OF THERMOPLASTIC RESIN COMPRISING THE STEPS OF: APPLYING HEAT IMAGEWISE TO SAID LAYER TO PRODUCE A HEAT-CREATED PERMANENT, DEVELOPABLE, LATENT IMAGE THEREIN, AND PLACING SAID LAYER BETWEEN CROSSED OPTICAL POLARIZERS TO OBTAIN A VISIBLE IMAGE BY TRANSMITTED LIGHT.
References Cited (Backward Citations)
US2859351A
Cited
US2880110A
Cited
US2929736A
Cited
US2954311A
Cited
US3060020A
Cited
US3060052A
Cited
US3120611A
Cited
US3108896A
Cited
US3054692A
Cited
US3100702A
Cited
US3094417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |