US3515459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inlay diffraction gratings
Assignee: REMSEN V WOOD
•
Filing: 1967-01-03
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Granted: 1970-06-02
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Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 Remsen V Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:49
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/02; B44F1/04; G; G02; G02B; G02B5/00; G02B5/18; G02B5/1842; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24702
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |