US3477189A
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Assignee: Anthes Imperial Ltd
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Filing: 1967-02-20
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Granted: 1969-11-11
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Expires: 1987-02-20
Abstract
No abstract record available.
Inventors
- 👤 Karol J W Merson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B2001/1924; E04B2001/1927; E04B2001/1936; E04B2001/1951; E04B2001/1981; E04B2001/1984; E04B2001/1993; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49625; Y10T29/49826; Y10T29/49904
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |