US4915745B1
Expired / Lapsed
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US4915745B1 - - Google Patents
Assignee: Atlantic Richfield Co
•
Filing: 1988-09-22
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Granted: 1992-04-07
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Expires: 2008-09-22
Abstract
No abstract record available.
Inventors
- 👤 A Pollock Gary
- 👤 W Mitchell Kim
- 👤 H Ermer James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:32
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/16; H10F10/167; C; C23; C23C; C23C14/00; C23C14/06; C23C14/0623; H10F77/00; H10F77/10; H10F77/12; H10F77/126; H10F77/20; H10F77/206; H10F77/211; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-07 | 1995-10-07 | 1996-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-07 | 1999-10-07 | 2000-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-07 | 2003-10-07 | 2004-04-07 | $7700.00 | Window Closed / Lapsed |