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US3473274A
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Assignee: OCCIDENTIAL ELECTROCHEMICALS Corp
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Filing: 1967-07-19
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Granted: 1969-10-21
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Expires: 1987-07-19
Abstract
No abstract record available.
Inventors
- 👤 David Godes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US623681A
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US2042890A
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US2766861A
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US2782888A
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US3159943A
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US3161924A
Cited
US3170266A
Cited
US3214876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |