Patent US2716992A successfully refreshed from Google Patents.
US2716992A
Expired / Lapsed
US
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Supporting means for tents
Assignee: ARTHUR E CAMPFIELD Inc
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Filing: 1953-10-30
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Granted: 1955-09-06
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Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Campfield
- 👤 Davis Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:33
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/60
Claims Analysis
Total Claims: 0
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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) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |