US3547074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming microelements
Assignee: Bio Rad Laboratories Inc
•
Filing: 1967-04-13
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Granted: 1970-12-15
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Expires: 1987-04-13
Abstract
No abstract record available.
Inventors
- 👤 Tomas Hirschfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:07
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/221; H; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3178; Y; Y10; Y10S; Y10S148/00; Y10S148/006; Y10S148/045; Y10S148/169
Claims Analysis
Total Claims: 0
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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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |