US3528206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal expansion compensation device
Assignee: Canadian Patents and Development Ltd
•
Filing: 1968-07-16
•
Granted: 1970-09-15
•
Expires: 1988-07-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Baird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:05
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2660049A
Cited
US3049194A
Cited
US3201076A
Cited
US3203141A
Cited
US3077958A
Cited
US3229224A
Cited
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 |