US3528927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laserable glass material
Assignee: American Optical Corp
•
Filing: 1964-11-10
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Granted: 1970-09-15
•
Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert E Graf
- 👤 Robert W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:51
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17; C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C4/00; C03C4/0057; C03C4/0071; C03C4/12
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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |