US3498877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing fire resisting wooden articles
Assignee: VEDEX DANSK SKOV IND AS
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Filing: 1965-03-01
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Granted: 1970-03-03
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Christen Christoffersen
- 👤 Karl-Otto Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; B; B27; B27D; B27D1/00; B27D1/04; C; C08; C08L; C08L97/00; C08L97/02; B27K; B27K2240/00; B27K2240/30; B27K3/00; B27K3/16; B27K3/166; B27K3/20; C08L2201/00; C08L2201/02; C08L61/00; C08L61/04; C08L61/06; C08L61/20; C08L61/22; C08L61/24; C08L61/30; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1766606A
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US1804633A
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US1994073A
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US2140981A
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US2452054A
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US2532983A
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US3284216A
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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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |