US2979064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable building construction
Assignee: Berger Brothers Co
•
Filing: 1958-10-09
•
Granted: 1961-04-11
•
Expires: 1978-10-09
Abstract
No abstract record available.
Inventors
- 👤 William H Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/20; E04H2015/202; E04H2015/203; Y; Y10; Y10S; Y10S52/00; Y10S52/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2642883A
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US2657716A
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US2682274A
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US2711181A
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US2698020A
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US2682235A
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US2819724A
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US2782794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |