US3470598A
Expired / Lapsed
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Method of making structural elements
Assignee: Individual
•
Filing: 1965-05-21
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Granted: 1969-10-07
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Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Viggo Berthelsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:21
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/20; E06B3/205; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/15; B29C48/154; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2007; B29C65/203; B29C65/2053; B29C65/2061; B29C65/2069; B29C65/2076; B29C65/24; B29C65/26; B29C65/78; B29C65/7841; B29C66/00; B29C66/01; B29C66/02; B29C66/022; B29C66/0224; B29C66/02241; B29C66/05; B29C66/10; B29C66/11; B29C66/116; B29C66/1162; B29C66/348; B29C66/50; B29C66/51; B29C66/52; B29C66/524; B29C66/5243; B29C66/52431; B29C66/80; B29C66/81; B29C66/818; B29C66/8181; B29C66/81811; B29C66/81815; B29C66/82; B29C66/822; B29C66/8225; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/843; E06B3/22; E06B3/221; B29C48/07; B29C48/08; B29C48/11; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/71; B29L; B29L2031/00; B29L2031/778; E06B2003/228; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49616; Y10T29/49623; Y10T29/49625; Y10T29/49627; Y10T29/49787; Y10T29/49789; Y10T29/49798; Y10T29/49826; Y10T29/49885; Y10T29/4998; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331
Claims Analysis
Total Claims: 0
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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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |