US2874084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handling thermo-responsive cements
Assignee: BB Chemical Co
•
Filing: 1953-11-30
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Granted: 1959-02-17
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Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Hans C Paulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:37
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/022; B05; B05C; B05C11/00; B05C11/10; B05C11/1042; B05C5/00; B05C5/001; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2978
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A FLEXIBLE ROD OF THEMOPLASTIC CEMENT OF INDEFINITE LENGTH HAVING LONGITUDINALLY EXTENDING GROOVING TO FACILITATE COILING OF THE ROD AND TO EXPOSE INCREASED SURFACE AREA FOR RAPID MELTING, THE VOLUME PER UNIT LENGTH OF THE SPACE WITHIN SAID GROOVING CORRESPONDING TO THE VOLUMERTIC EXPANSION PER UNIT LENGTH OF THE GROOVED ROD MAATERIAL WHEN MELTED.
Claim 2
Dependent Claim
54 words
A FLEXIBLE ROD OF THEMOPLASTIC CEMENT OF INDEFINITE LENGTH HAVING LONGITUDINALLY EXTENDING GROOVING TO FACILITATE COILING OF THE ROD AND TO EXPOSE INCREASED SURFACE AREA FOR RAPID MELTING, THE VOLUME PER UNIT LENGTH OF THE SPACE WITHIN SAID GROOVING CORRESPONDING TO THE VOLUMERTIC EXPANSION PER UNIT LENGTH OF THE GROOVED ROD MAATERIAL WHEN MELTED.
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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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |