US3359945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Development of electrostatic images
Assignee: Dennison Manufacturing Co
•
Filing: 1966-10-17
•
Granted: 1967-12-26
•
Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Dana B Hastings
- 👤 Alfred K Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:37
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
FOR DEVELOPING ELECTROSTATIC IMAGES ON A SHEET OF MATERIAL, APPARATUS COMPRISING A CONTAINER FOR A POOL OF DEVELOPER, MEANS FOR GUIDING THE SHEET THROUGH THE POOL ALONG A PREDETERMINED PATH WHICH DIPS INTO THE POOL WITH THE IMAGE SIDE OF THE SHEET FACING UPWARDLY, UPPER AND LOWER METALLIC MEMBERS IN THE POOL JUXTAPOSED TO THE
Claim 2
Dependent Claim
55 words
FOR DEVELOPING ELECTROSTATIC IMAGES ON A SHEET OF MATERIAL, APPARATUS COMPRISING A CONTAINER FOR A POOL OF DEVELOPER, MEANS FOR GUIDING THE SHEET THROUGH THE POOL ALONG A PREDETERMINED PATH WHICH DIPS INTO THE POOL WITH THE IMAGE SIDE OF THE SHEET FACING UPWARDLY, UPPER AND LOWER METALLIC MEMBERS IN THE POOL JUXTAPOSED TO THE
References Cited (Backward Citations)
US3103153A
Cited
GB919919A
Cited
US3139808A
Cited
US3168021A
Cited
US3169887A
Cited
US3202526A
Cited
US3245330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |