US2489715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing
Assignee: Clayton Mark and Co
•
Filing: 1944-11-18
•
Granted: 1949-11-29
•
Expires: 1964-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Clayton Mark
- 👤 Hula Robert
- 👤 Harold J Alwart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/324; F16J15/3284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1287285A
Cited
US2036038A
Cited
GB437477A
Cited
US2052762A
Cited
US2134302A
Cited
US2218638A
Cited
US2214261A
Cited
US2318757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |