US3521826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn package transfer apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1968-02-29
•
Granted: 1970-07-28
•
Expires: 1988-02-29
Abstract
No abstract record available.
Inventors
- 👤 Hayes J Schmick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/04; B65H67/044; B65H67/048; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE874945C
Cited
US2789774A
Cited
US2772054A
Cited
US3001732A
Cited
US3076614A
Cited
US3276703A
Cited
US3355117A
Cited
US3378211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |