Patent US3530645A successfully refreshed from Google Patents.
US3530645A
Expired / Lapsed
US
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Collector plate construction
Assignee: MICHAEL P DE LISIO
•
Filing: 1968-03-21
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Granted: 1970-09-29
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Expires: 1988-03-21
Abstract
No abstract record available.
Inventors
- 👤 Michael P De Lisio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/74; B03C3/76; B03C3/40; B03C3/45; B03C3/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA645788A
Cited
US3125426A
Cited
US1345790A
Cited
DE464858C
Cited
US1903640A
Cited
US2532734A
Cited
US2631686A
Cited
DE975489C
Cited
GB822593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |