US3080055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated screening apparatus
Assignee: Screen Heating Transformers Inc
•
Filing: 1959-08-05
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Granted: 1963-03-05
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Expires: 1979-08-05
Abstract
No abstract record available.
Inventors
- 👤 La Verne J Riesbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:59
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/56; B07B1/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN ELECTRICALLY HEATED SERIES-CONNECTED SCREEN APPARATUS COMPRISING, A METAL FRAME, TWO SCREENS MOUNTED WITHIN SAID FRAME IN SIDE-BY-SIDE RELATION, A CONDUCTOR RAIL ELECTRICALLY CONNECTED TO SAID SCREENS AT ONE END THEREOF, TENSIONING MEANS CONNECTING SAID CONDUCTOR RAIL TO SAID FRAME AND ELECTRICALLY GROUNDING SAID RAIL TO SAID
Claim 2
Dependent Claim
47 words
AN ELECTRICALLY HEATED SERIES-CONNECTED SCREEN APPARATUS COMPRISING, A METAL FRAME, TWO SCREENS MOUNTED WITHIN SAID FRAME IN SIDE-BY-SIDE RELATION, A CONDUCTOR RAIL ELECTRICALLY CONNECTED TO SAID SCREENS AT ONE END THEREOF, TENSIONING MEANS CONNECTING SAID CONDUCTOR RAIL TO SAID FRAME AND ELECTRICALLY GROUNDING SAID RAIL TO SAID
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |