US3408315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nylon membrane filter
Assignee: EMD Millipore Corp
•
Filing: 1965-01-12
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Granted: 1968-10-29
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Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Richard A Paine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:08
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/28; B; B01; B01D; B01D67/00; B01D67/0002; B01D67/0009; B01D67/00091; B01D67/0011; B01D71/00; B01D71/06; B01D71/56; B01D2323/00; B01D2323/06; C08J2201/00; C08J2201/04; C08J2201/05; C08J2201/0502
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |