US3528028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous laser of improved construction
Assignee: National Research Council Canada
•
Filing: 1964-08-10
•
Granted: 1970-09-08
•
Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Baird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:46
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/034; H01J; H01J17/00; H01J17/02; H01J17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1612387A
Cited
US1804467A
Cited
US2162505A
Cited
US3170383A
Cited
US3396343A
Cited
US3319183A
Cited
FR1374598A
Cited
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 |