US3300931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated roof construction with foamed plastic joining means
Assignee: Individual
•
Filing: 1964-09-15
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Granted: 1967-01-31
•
Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Lutze Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:41
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04B; E04B7/00; E04B9/00; E04B9/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A PREFABRICATED ROOF, IN COMBINATION, A SKELETON FRAME COMPRISING PAIRS OF LONGITUDINAL AND TRANSVERSE FRAME MEMBERS AND A PLURALITY OF SPACED JOISTS DISPOSED BETWEEN AND SUBSTANTIALLY PARALLEL TO ONE PAIR OF SAID FRAME MEMBERS, SAID ONE PAIR OF FRAME MEMBERS AND SAID JOISTS HAVING UNDERSIDES PROVIDED WITH LONGITUDINALLY EXTENDING GROOVES HAVING ENLARGED PORTIONS SPACED FROM THE RESPECTIVE UNDERSIDES; AT LEAST ONE CONNECTOR FOR AT LEAST SOME OF SAID GROOVES, SAID CONNECTORS BEING LOCATED AT A
Claim 2
Dependent Claim
76 words
IN A PREFABRICATED ROOF, IN COMBINATION, A SKELETON FRAME COMPRISING PAIRS OF LONGITUDINAL AND TRANSVERSE FRAME MEMBERS AND A PLURALITY OF SPACED JOISTS DISPOSED BETWEEN AND SUBSTANTIALLY PARALLEL TO ONE PAIR OF SAID FRAME MEMBERS, SAID ONE PAIR OF FRAME MEMBERS AND SAID JOISTS HAVING UNDERSIDES PROVIDED WITH LONGITUDINALLY EXTENDING GROOVES HAVING ENLARGED PORTIONS SPACED FROM THE RESPECTIVE UNDERSIDES; AT LEAST ONE CONNECTOR FOR AT LEAST SOME OF SAID GROOVES, SAID CONNECTORS BEING LOCATED AT A
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |