US3550876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Creel
Assignee: James Mackie and Sons Ltd
•
Filing: 1968-09-11
•
Granted: 1970-12-29
•
Expires: 1988-09-11
Abstract
No abstract record available.
Inventors
- 👤 John Kay Pringle Mackie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:48
CPC Classifications
D; D02; D02H; D02H13/00; B; B65; B65H; B65H63/00; B65H63/02; B65H63/024; B65H63/036; B65H2555/00; B65H2555/10; B65H2555/11; B65H2701/00; B65H2701/30; B65H2701/31
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) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |