US3216875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making structural materials
Assignee: JOHN L SEYMOUR
•
Filing: 1958-04-17
•
Granted: 1965-11-09
•
Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Raymund G Wenthe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/0069; B; B27; B27M; B27M3/00; B27M3/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1011; Y10T156/1052; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/768; Y10T83/7809
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
THE METHOD OF MAKING COVE THAT COMPRISES TRIMMING THE SIDES OF A WOUND TUBE ALONG CHORDS, AND DIVIDING THE TUBE LENGTHWISE IN THE TRIMMED AREAS.
Claim 2
Independent Claim
25 words
THE METHOD OF MAKING COVE THAT COMPRISES TRIMMING THE SIDES OF A WOUND TUBE ALONG CHORDS, AND DIVIDING THE TUBE LENGTHWISE IN THE TRIMMED AREAS.
References Cited (Backward Citations)
US110704A
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US278957A
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US374133A
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US781376A
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US2720899A
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |