Patent US4030858A successfully refreshed from Google Patents.
Patent US3407440A successfully refreshed from Google Patents.
US3407440A
Expired / Lapsed
US
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Apparatus for producing corrugated structures
Assignee: Phillips Petroleum Co
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Filing: 1966-09-30
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Granted: 1968-10-29
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Luther O Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:51
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/022; B29C65/028; B29C53/00; B29C53/56; B29C53/58; B29C53/78; B29C66/00; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C69/00; B29D; B29D23/00; B29D23/18; B29C48/00; B29C48/03; B29C48/09; B29C66/5227; B29L; B29L2023/00; B29L2023/003
Claims Analysis
Total Claims: 0
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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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |