US2556847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eyeshield
Assignee: Anglo Iranian Oil Co Ltd
•
Filing: 1950-06-28
•
Granted: 1951-06-12
•
Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 Maclean Thomas Traill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/16; A; A61; A61F; A61F9/00; A61F9/02; A61F9/028; G02C11/00; G02C11/08; G02C5/00; G02C5/12
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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |