US2459804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped felted structures
Assignee: Akzo Nobel UK PLC
•
Filing: 1942-08-01
•
Granted: 1949-01-25
•
Expires: 1962-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Carleton S Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/04; D04H1/08; D04H1/22; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24628; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965
Claims Analysis
Total Claims: 0
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US2000013A
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US2156455A
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US2096743A
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US2253000A
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US2247208A
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US2321108A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |