US3527198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for working diamonds by means of laser light beam
Assignee: Toshiba Corp
•
Filing: 1967-03-23
•
Granted: 1970-09-08
•
Expires: 1987-03-23
Abstract
No abstract record available.
Inventors
- 👤 Takashi Takaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:22
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/12; B23K26/127; B23K26/02; B23K26/06; B23K26/062; B23K26/0622; B23K26/1224; B23K26/123; B23K26/36; B23K26/38; B23K26/382; B23K26/389; B28; B28D; B28D1/00; B28D1/22; B28D1/221; B23K2103/00; B23K2103/30; B23K2103/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |