US2987188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer
Assignee: T Shriver and Co Inc
•
Filing: 1958-09-04
•
Granted: 1961-06-06
•
Expires: 1978-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jahreis Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:57
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/03; B01D29/60; B01D29/605; B01D29/62; B01D29/66
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2057234A
Cited
US885786A
Cited
US1152831A
Cited
US1273656A
Cited
US1677503A
Cited
US1508480A
Cited
DE448346C
Cited
US2698292A
Cited
US2651418A
Cited
US2835391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |