Patent US3598133A successfully refreshed from Google Patents.
US3598133A
Expired / Lapsed
US
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Lightweight tent construction
Assignee: JOHNSON CAMPING Inc A CORP OF DE
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Filing: 1968-12-04
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Granted: 1971-08-10
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Expires: 1988-12-04
Abstract
Abstract A lightweight tent construction comprising a tent roof having an outer waterproof layer of thin lightweight material and an inner layer of insulating material, such as synthetic foam, or the like, wherein the waterproof layer may be of fabric or plastic material of high tensile strength ranging in thickness between 0.004 and 0.010 inches, and wherein the insulating foam material may range in thickness between one sixty-fourth of an inch to one-eighth of an inch.
Inventors
- 👤 Jack C Abert
- 👤 Fred A Farnbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:15
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/54; Y; Y10; Y10S; Y10S160/00; Y10S160/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US640582A
Cited
US2299078A
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US2932304A
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US3052249A
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US3244186A
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US3407546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |