US3299557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection transparencies
Assignee: Avery Dennison Office Products Co
•
Filing: 1965-01-06
•
Granted: 1967-01-24
•
Expires: 1985-01-06
Abstract
No abstract record available.
Inventors
- 👤 Bennett V Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:18
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
PROJECTION SLIDES FOR OVERHEAD PROJECTOR COMPRISING A FRAME, A FIRST IMAGE BEARING TRANSPARENCY AFFIXED IN COPLANAR RELATIONSHIP TO SAID FRAME, AT LEAST ONE OTHER IMAGE BEARING MOVABLE TRANSPARENCY HINGEDLY AND SLIDABLY CARRIED ON SAID FRAME, WHEREBY THE LATTER TRANSPARENCY CAN BE SWUNG INTO AND OUT OF SUPERPOSED RELATION WITH THE FIRST TRANSPARENCY AND MOVED EDGEWISE RELATIVE TO SAID FIRST TRANSPARENCY WHILE IN SAID SUPERPOSED RELATION.
Claim 2
Dependent Claim
65 words
PROJECTION SLIDES FOR OVERHEAD PROJECTOR COMPRISING A FRAME, A FIRST IMAGE BEARING TRANSPARENCY AFFIXED IN COPLANAR RELATIONSHIP TO SAID FRAME, AT LEAST ONE OTHER IMAGE BEARING MOVABLE TRANSPARENCY HINGEDLY AND SLIDABLY CARRIED ON SAID FRAME, WHEREBY THE LATTER TRANSPARENCY CAN BE SWUNG INTO AND OUT OF SUPERPOSED RELATION WITH THE FIRST TRANSPARENCY AND MOVED EDGEWISE RELATIVE TO SAID FIRST TRANSPARENCY WHILE IN SAID SUPERPOSED RELATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |